Update libretro.c
[pcsx_rearmed.git] / frontend / plat_omap.c
1 /*
2  * (C) GraÅžvydas "notaz" Ignotas, 2010-2012
3  *
4  * This work is licensed under the terms of the GNU GPLv2 or later.
5  * See the COPYING file in the top-level directory.
6  */
7
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <sys/types.h>
11 #include <sys/stat.h>
12 #include <fcntl.h>
13 #include <sys/ioctl.h>
14 #include <unistd.h>
15 #include <linux/omapfb.h>
16
17 #include "libpicofe/menu.h"
18 #include "libpicofe/input.h"
19 #include "libpicofe/linux/fbdev.h"
20 #include "libpicofe/linux/xenv.h"
21 #include "plugin_lib.h"
22 #include "pl_gun_ts.h"
23 #include "plat.h"
24 #include "plat_omap.h"
25 #include "menu.h"
26
27 static struct vout_fbdev *main_fb, *layer_fb;
28
29 static int omap_setup_layer_(int fd, int enabled, int x, int y, int w, int h)
30 {
31         struct omapfb_plane_info pi = { 0, };
32         struct omapfb_mem_info mi = { 0, };
33         int ret;
34
35         ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);
36         if (ret != 0) {
37                 perror("QUERY_PLANE");
38                 return -1;
39         }
40
41         ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);
42         if (ret != 0) {
43                 perror("QUERY_MEM");
44                 return -1;
45         }
46
47         /* must disable when changing stuff */
48         if (pi.enabled) {
49                 pi.enabled = 0;
50                 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
51                 if (ret != 0)
52                         perror("SETUP_PLANE");
53         }
54
55         // upto 1024x512 (2x resolution enhancement)
56         if (mi.size < 1024*512*2 * 3) {
57                 mi.size = 1024*512*2 * 3;
58                 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
59                 if (ret != 0) {
60                         perror("SETUP_MEM");
61                         return -1;
62                 }
63         }
64
65         pi.pos_x = x;
66         pi.pos_y = y;
67         pi.out_width = w;
68         pi.out_height = h;
69         pi.enabled = enabled;
70
71         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
72         if (ret != 0) {
73                 perror("SETUP_PLANE");
74                 return -1;
75         }
76
77         return 0;
78 }
79
80 static int omap_enable_layer(int enabled)
81 {
82         if (enabled)
83                 pl_set_gun_rect(g_layer_x, g_layer_y, g_layer_w, g_layer_h);
84
85         return omap_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled,
86                 g_layer_x, g_layer_y, g_layer_w, g_layer_h);
87 }
88
89 void plat_omap_gvideo_open(void)
90 {
91         omap_enable_layer(1);
92
93         // try to align redraws to vsync
94         vout_fbdev_wait_vsync(layer_fb);
95 }
96
97 void *plat_gvideo_set_mode(int *w_in, int *h_in, int *bpp)
98 {
99         int l = 0, r = 0, t = 0, b = 0;
100         int w = *w_in, h = *h_in;
101         void *buf;
102
103         if (g_scaler == SCALE_1_1 || g_scaler == SCALE_2_2) {
104                 if (w > g_menuscreen_w) {
105                         l = r = (w - g_menuscreen_w) / 2;
106                         w -= l + r;
107                 }
108                 if (h > g_menuscreen_h) {
109                         t = b = (h - g_menuscreen_h) / 2;
110                         h -= t + b;
111                 }
112         }
113
114         buf = vout_fbdev_resize(layer_fb, w, h, *bpp,
115                 l, r, t, b, 3);
116
117         vout_fbdev_clear(layer_fb);
118
119         omap_enable_layer(1);
120
121         return buf;
122 }
123
124 void *plat_gvideo_flip(void)
125 {
126         return vout_fbdev_flip(layer_fb);
127 }
128
129 void plat_gvideo_close(void)
130 {
131         omap_enable_layer(0);
132 }
133
134 void plat_video_menu_enter(int is_rom_loaded)
135 {
136         g_menuscreen_ptr = vout_fbdev_resize(main_fb,
137                 g_menuscreen_w, g_menuscreen_h, 16, 0, 0, 0, 0, 3);
138         if (g_menuscreen_ptr == NULL)
139                 fprintf(stderr, "warning: vout_fbdev_resize failed\n");
140
141         xenv_update(NULL, NULL, NULL, NULL);
142 }
143
144 void plat_video_menu_begin(void)
145 {
146 }
147
148 void plat_video_menu_end(void)
149 {
150         g_menuscreen_ptr = vout_fbdev_flip(main_fb);
151 }
152
153 void plat_video_menu_leave(void)
154 {
155         /* have to get rid of panning so that plugins that
156          * use fb0 and don't ever pan can work. */
157         vout_fbdev_clear(main_fb);
158         g_menuscreen_ptr = vout_fbdev_resize(main_fb,
159                 g_menuscreen_w, g_menuscreen_h, 16, 0, 0, 0, 0, 1);
160         if (g_menuscreen_ptr == NULL)
161                 fprintf(stderr, "warning: vout_fbdev_resize failed\n");
162 }
163
164 void plat_minimize(void)
165 {
166         int ret;
167
168         ret = vout_fbdev_save(layer_fb);
169         if (ret != 0) {
170                 printf("minimize: layer/fb handling failed\n");
171                 return;
172         }
173
174         xenv_minimize();
175
176         in_set_config_int(0, IN_CFG_BLOCKING, 0); /* flush event queue */
177         omap_enable_layer(0); /* restore layer mem */
178         vout_fbdev_restore(layer_fb);
179 }
180
181 void *plat_prepare_screenshot(int *w, int *h, int *bpp)
182 {
183         return NULL;
184 }
185
186 void plat_omap_init(void)
187 {
188         const char *main_fb_name, *layer_fb_name;
189         int fd, ret, w, h;
190
191         main_fb_name = getenv("FBDEV_MAIN");
192         if (main_fb_name == NULL)
193                 main_fb_name = "/dev/fb0";
194
195         layer_fb_name = getenv("FBDEV_LAYER");
196         if (layer_fb_name == NULL)
197                 layer_fb_name = "/dev/fb1";
198
199         // must set the layer up first to be able to use it
200         fd = open(layer_fb_name, O_RDWR);
201         if (fd == -1) {
202                 fprintf(stderr, "%s: ", layer_fb_name);
203                 perror("open");
204                 exit(1);
205         }
206
207         g_layer_x = 80, g_layer_y = 0;
208         g_layer_w = 640, g_layer_h = 480;
209
210         ret = omap_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
211         close(fd);
212         if (ret != 0) {
213                 fprintf(stderr, "failed to set up layer, exiting.\n");
214                 exit(1);
215         }
216
217         xenv_init(NULL, "PCSX-ReARMed");
218
219         w = h = 0;
220         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);
221         if (main_fb == NULL) {
222                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);
223                 exit(1);
224         }
225
226         g_menuscreen_w = w;
227         g_menuscreen_h = h;
228         g_menuscreen_ptr = vout_fbdev_flip(main_fb);
229         pl_rearmed_cbs.screen_w = w;
230         pl_rearmed_cbs.screen_h = h;
231
232         w = 640;
233         h = 512;
234         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 3);
235         if (layer_fb == NULL) {
236                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);
237                 goto fail0;
238         }
239
240         return;
241
242 fail0:
243         vout_fbdev_finish(main_fb);
244         exit(1);
245 }
246
247 void plat_omap_finish(void)
248 {
249         omap_enable_layer(0);
250         vout_fbdev_finish(layer_fb);
251         vout_fbdev_finish(main_fb);
252         xenv_finish();
253 }
254